Chinese Wall test position (hard)

[MikeGL]

Saw a post at youtube called Chinese Wall by the original poster.
Puzzle composed by O Blathy.

[d]4k3/6p1/8/3p3b/p1pPp1pP/BpP1PpP1/1P3P1R/K2N3N w - - 0 1
Solution seems difficult for engines.

Solution at youtube
https://www.youtube.com/watch?v=ZEq_X-yE9nU

[Ajedrecista]

Hello Mike:

The problem is uploaded at YACPDB (Yet Another Chess Problem Database):

http://yacpdb.org/#278043

Code: Select all

Bláthy, Ottó Titusz
The Chess Amateur (458) 1921

So I paste the solution given at YACPDB with the intention of getting a sort of backup in the forum:

[pgn][Date "1921.??.??"]
[Round ""]
[White ""]
[Black ""]
[Result "1-0"]
[ECO "??"]
[TimeControl "?"]
[PlyCount "135"]
[FEN "4k3/6p1/8/3p3b/p1pPp1pP/BpP1PpP1/1P3P1R/K2N3N w - - 0 1"]
1. Kb1 Kf7 2. Kc1 Ke8 3. Kd2 Kf7 4. Ke1 Ke8 5. Kf1 Kf7
6. Rg2 Ke8 7. Rg1 Kf7 8. Ke1 Ke8 9. Kd2 Kd7 10. Re1
Kc6 11. Re2 Kd7 12. Kc1 Kc6 13. Rc2 Kb5 14. Kd2 Kc6
15. Rc1 Kd7 16. Ra1 Ke6 17. Bc5 Be8 18. h5 Bd7 19. Rc1
Be8 20. Rc2 Bxh5 21. Kc1 Kf7 22. Rd2 Ke6 23. Rd3 Kf7
24. Kd2 Ke6 25. Ke1 Kd7 26. Rd2 Ke6 27. Re2 Kd7 28.
Kd2 Ke6 29. Re1 Kf7 30. Rg1 Ke6 31. Ke1 Kf6 32. Kf1
Ke6 33. Rg2 Kf6 34. Rh2 g6 35. Rg2 Kf5 36. Rg1 Ke6 37.
Ke1 Kd7 38. Kd2 Ke6 39. Re1 Kd7 40. Re2 Ke6 41. Ke1
Kd7 42. Rd2 Ke6 43. Rd3 Kd7 44. Kd2 Ke6 45. Kc1 Kf7
46. Rd2 Ke8 47. Rc2 Kd7 48. Kd2 g5 49. Ke1 Ke6 50. Rd2
Kf7 51. Rd3 Ke6 52. Kd2 Kf7 53. Kc1 Ke6 54. Rd2 Kf7
55. Re2 Ke6 56. Kd2 Kf7 57. Re1 Ke6 58. Rg1 Kf7 59.
Ke1 Ke6 60. Kf1 Kf7 61. Rg2 Kg7 62. Rh2 Bf7 63. Bd6
Be8 64. Be5+ Kf7 65. Rh7+ Ke6 66. Rg7 Bd7 67. Kg1 Be8
68. Rxg5 1-0[/pgn]

Regards from Spain.

Ajedrecista.